Gemma, a dog breeder, said: “My daughters are devastated. They can’t bear to be without the dogs. Robyn keeps saying ‘woof, woof’ hoping they’ll answer. They just want their friends back safe on the farm.

“We are most concerned about Bella as she is about to give birth. I’m heartbroken someone would take a dog when she’s so vulnerable.

“I don’t tell many people about our dogs because I know they’re valuable – I’ve been very careful about it in the past. Despite their value, they are all just lovely little dogs and so sweet-natured. They love our girls to bits.

“That’s probably why we didn’t hear them when they were taken – with our dogs no visitor is unwanted so they wouldn’t have put up a protest.”

Jack Russell puppies can fetch £350 and Schnauzers £800.

Sgt James Firth urged anyone with information to contact West Yorkshire police.